In output of ps -elf command in linux, we can recognize that process flag of 4 and 1, and process flag of 5, (sum of 1 and 4), but what is meaning of process flag 0 ?
unfortunately, man does not help ...

I already asked a question about how to list all namespaces in Linux, but there wasn't any correct and exact answers, so I want to find out a method which can help me to find out the namespace of PID ...

If I disown a job in bash and change my mind, can I undo it somehow ?
If so, taking it further, is it possible to bring an arbitrary process under job control (an acceptable restriction would be that ...

Quick question. Is it possible to create directory in /proc that starts with number but isn't process directory (where name is PID)? I write software that searches for process directories and I wonder ...

l and v in exec calls denote whether the arguments are provided via list or array(vector). I read it somewhere that p denotes the user's path and e denote the environment but did not understand what ...

Is there a way to restrict CPU time (duration) for all processes which are invoked by executables that are located in a certain directory?
I would like to be able to auto-kill all applications which ...

I have a java process that runs continually that sometimes, for reasons I have yet to fully debug, craps out. So, I also have a cron job that looks for the process every 5 minutes and if it finds the ...

In the past, I've used nohup to run big background jobs, but I've noticed that a lot of people use Screen in this context. Does Screen provide some kind of functional advantage that I am unaware of, ...

I am copying some files from an external drive to my desktop running Ubuntu. I can see the "File Operations" dialog which shows copying process.
How do I find this particular process in ps aux | grep ...

I am working in java code,my code attend in making specific java thread run on specific core and in this code i give names for java threads.I need linux command that enable me to know threads names ...

I just installed and configured fail2ban. I want to make sure it is working. I don't want to block myself from the server so I can't just login (poorly) a bunch of times. How do I see that fail2ban is ...

Basically I'm using Linux 2.6.34 on PowerPC (Freescale e500mc). I have a process (a kind of Virtual Machine that was developed in-house) that uses about 2.25 G of mlocked VM. When I kill it, I notice ...

If I have open Nautilus and spawn a new Nautilus instance a new PID is created for the new Nautilus instance. Shortly after, the instance is being joined with the main Nautilus program running.
Main ...

This is one of the questions that has troubled me often. Suppose I have thousand or more instances of any process(for e.g. say the process vi) running. How do I kill them all in one single shot/one ...

After having a long debug session and finally finding out that in Fedora (and CentOS) php-fpm has its own mounted /tmp filesystem, which was caused by a systemd setting, PrivateTmp, I am wondering if ...

I'm reading some doc about UNIX but I don't understand two things:
Why is important for the kernel to know the current working directory of the running process?
Why not keeping the inode information ...

I've been using x265 to encode some video on my workstation lately, but I have a problem: even though I launch it using nice -n 20 x265 to deprioritize it, it still slows the computer to a crawl while ...

I would like to have a way in which a set of folders do not allow write access for a particular process. For example, I would love to have a way in which YUM/RPM is not allowed to write into /usr/bin
...